55426503 has 16 divisors (see below), whose sum is σ = 80744832. Its totient is φ = 33540000.

The previous prime is 55426471. The next prime is 55426507. The reversal of 55426503 is 30562455.

It is not a de Polignac number, because 55426503 - 2⁵ = 55426471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55426507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41953 + ... + 43253.

It is an arithmetic number, because the mean of its divisors is an integer number (5046552).

Almost surely, 2^55426503 is an apocalyptic number.

55426503 is a deficient number, since it is larger than the sum of its proper divisors (25318329).

55426503 is a wasteful number, since it uses less digits than its factorization.

55426503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2606.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 55426503 is about 7444.8977830458. The cubic root of 55426503 is about 381.2757285154.

Adding to 55426503 its reverse (30562455), we get a palindrome (85988958).

The spelling of 55426503 in words is "fifty-five million, four hundred twenty-six thousand, five hundred three".